1361259489 has 8 divisors (see below), whose sum is σ = 1864067200. Its totient is φ = 882979056.

The previous prime is 1361259467. The next prime is 1361259553. The reversal of 1361259489 is 9849521631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1361259489 - 2⁸ = 1361259233 is a prime.

It is a super-2 number, since 2×1361259489² = 3706054792785082242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1361259089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6131689 + ... + 6131910.

It is an arithmetic number, because the mean of its divisors is an integer number (233008400).

Almost surely, 2^1361259489 is an apocalyptic number.

It is an amenable number.

1361259489 is a deficient number, since it is larger than the sum of its proper divisors (502807711).

1361259489 is a wasteful number, since it uses less digits than its factorization.

1361259489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12263639.

The product of its digits is 466560, while the sum is 48.

The square root of 1361259489 is about 36895.2502227590. The cubic root of 1361259489 is about 1108.2735624252.

The spelling of 1361259489 in words is "one billion, three hundred sixty-one million, two hundred fifty-nine thousand, four hundred eighty-nine".